The Ludington pumped storage facility is essentially one of the world’s largest batteries. Consumers Energy gets its base load of energy from its coal and gas plants across the state. When the energy demands peak above that base load, they need places like the Ludington Pumped Storage Facility to pick up the slack. In just a matter of minutes, they can open up the gates, get the water flowing through the turbines and pick up that amount. When the demand is low, like at night, they will start pumping water back in to the reservoir, getting ready for that next call.